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AT&T

1 case appearance — 0 as plaintiff counsel · 1 as defendant counsel.

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Attorneys

Further reading

Obviousness under § 103
Most patented inventions are combinations of existing ideas. The modern KSR standard makes those combinations easier to attack than they used to be.
Anatomy of a shakedown: how a patent troll campaign actually works
A patent troll demand letter isn't a lawsuit. It's the output of an industrial process designed to extract money at scale, calibrated to your defense costs, and dependent on you not coordinating with the other 199 targets in the same campaign.
How patent trolls operate (and why the business model works)
A junk patent generates settlement income exactly the same way as a strong one, because nobody pays $1M to test a $200k demand. The mechanics matter because the failure modes — what makes assertion campaigns expensive or risky for the troll — are exactly where defendants find leverage.
Patent reviews: IPR, PGR, and reexamination
Suing in district court to invalidate a patent costs $3-5M and takes years. The USPTO's post-grant review system does it for $200-500k and 12-18 months. For a defendant facing a weak patent, the choice is usually obvious.
What to do if you get a patent demand letter
A patent demand letter is a request for money, not a court order. The plaintiff's leverage is your fear; preparation removes it.